Title:
音声認識装置及び音声認識方法
Document Type and Number:
Japanese Patent JP4340685
Kind Code:
B2
Abstract:
A speech recognition apparatus and speech recognition method are provided for reducing such events as erroneous recognition and disabled recognition and improving a recognition efficiency. The speech recognition apparatus generates a word model based on a dictionary memory and a sub-word sound model, and matches the word model with a speech input signal in accordance with a predetermined algorithm to perform a speech recognition for the speech input signal, wherein the apparatus comprises main matching means, operative when matching the word model with the speech input signal along a processing path indicated by the algorithm, for limiting the processing path based on a course command to select the word model most approximate to the speech input signal, local template storing means for previously typifying local sound features of spoken speeches for storage as local templates; and local matching means for matching each of component sections of the speech input signal with the local templates stored in the local template storing means to definitely determine a sound feature for each of the component sections, and generating the course command in accordance with the result of the definite determination.
Inventors:
Souichi Toyama
Application Number:
JP2006511627A
Publication Date:
October 07, 2009
Filing Date:
March 22, 2005
Export Citation:
Assignee:
Pioneer Corporation
International Classes:
G10L15/14; G10L15/08; G10L15/18
Domestic Patent References:
| JP4298798A | ||||
| JP1138596A | ||||
| JP8241096A | ||||
| JP200192495A | ||||
| JP2001265383A | ||||
| JP2004191705A |
Other References:
迫江他,ビームサーチとベクトル量子化によるDPマッチングの高速化,信学技報,1987年 6月,SP87-26,pp.33--40
Attorney, Agent or Firm:
Motohiko Fujimura
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